dye|World dye variety

Name:C.I.Direct Orange 7,C.I.23380

Molecular Structure: Double azo class

C.I.Direct Orange 7,C.I.23380,CAS 2868-76-0,632.60,C29H26N6Na2O6S,Orange II

Molecular Formula:C₂₉H₂₆N₆Na₂O₆S

Molecular Weight: 632.60

CAS Registry Number:2868-76-0

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, first with 2-Hydroxy-3-methylbenzoic acid coupling, again with 2,4-Diamino-5-methylbenzenesulfonic acid coupling

Properties and Applications:  yellow orange. Soluble in water for gold orange, and adequate soluble in ethanol for golden brown. The strong sulfuric acid for purple (have dark), for dark yellow brown after diluted.

List of Suppliers:

Orange II( United Chemie )